coolant low...but its not low - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > coolant low...but its not low

Coil Spring Options from Ruffstuff!Flush Mount LED Bumper Lights, CREEThe Original 3/8" Ruffstuff Diff Cover!

Reply
Unread 01-16-2010, 10:46 PM   #1
RanTJWJ
Registered User
1998 TJ Wrangler 
 
Join Date: Dec 2009
Location: Denver, CO
Posts: 168
coolant low...but its not low

I just bought a 2002 wj reading low coolant on the ceiling center council. Anyone had this and is it just a a "gooped up" sensor or do i need to replace it.

RanTJWJ is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 10:48 PM   #2
WiCkeDuDe
Web Wheeler
 
WiCkeDuDe's Avatar
2002 WJ 
 
Join Date: Dec 2007
Location: Utah
Posts: 3,118
Had the same problem on a 99. Replaced the sensor and its been fine. Was only about $10 at the dealer.
WiCkeDuDe is online now   Reply With Quote Quick reply to this message
Unread 01-16-2010, 10:51 PM   #3
RanTJWJ
Registered User
1998 TJ Wrangler 
 
Join Date: Dec 2009
Location: Denver, CO
Posts: 168
what do i have to do?
RanTJWJ is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 11:05 PM   #4
Howiedooit
Registered User
1999 WJ 
 
Join Date: Jan 2010
Location: Grand Forks
Posts: 175
I think the sensor is in the reservour, they read low when there is no fluid between the contacts of the sensor, so a gooped up sensor is less likely then a loose wire at the sensor, or a loose plug to the sensor. make sure the tank is full, then check the system behind the sensor by connecting the two wires by what ever means you want.. paper clip.. jump wire.. the light should go out narrowing it down to the sensor, check the sensor with a continuity testor, continuity when full, no continuity when empty. good luck
Howiedooit is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 11:14 PM   #5
ZJJay
Senior Member
 
ZJJay's Avatar
1996 ZJ 
 
Join Date: Nov 2009
Location: Mission Viejo, CA
Posts: 641
There was a thread a while back about this same problem. After testing the sender and the wiring, a member deterined the problem was with a bad solder connection on the back of the Vehicle Information Center (a display in the lower center console of a ZJ).

I was having this same problem. My sender tested good, but I decided to replace it anyway. After that I've had the warning message and chimes only once. It hasn't reoccurred in the past four months. I'll wait until it becomes a problem again before I remove the VIC and resolder the connections.
__________________
'96 ZJ, 4.0L, 42RE, NP242, stock D30 and D35-LS w/ 3.73, 4-1/2" lift, 32" BFG ATs, Magnaflow, JKS track bars and disconnects, spare tire carrier, Optima red top, ROLA roof rack, KC SlimLite driving lights, CB and Yaesu ham radios, GPS
ZJJay is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 11:17 PM   #6
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,682
Quote:
Originally Posted by Howiedooit View Post
I think the sensor is in the reservour, they read low when there is no fluid between the contacts of the sensor, so a gooped up sensor is less likely then a loose wire at the sensor, or a loose plug to the sensor. make sure the tank is full, then check the system behind the sensor by connecting the two wires by what ever means you want.. paper clip.. jump wire.. the light should go out narrowing it down to the sensor, check the sensor with a continuity testor, continuity when full, no continuity when empty. good luck

Max
__________________
Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 11:35 PM   #7
UltimatE
Resident Audio Guru
 
UltimatE's Avatar
1994 YJ Wrangler 
 
Join Date: Sep 2004
Location: Worcester, Mass
Posts: 7,072
Max has a picture of every Jeep part ever made.
__________________
-Matt

White '94 YJ Sport
Black '98 ZJ Laredo - 45x60 Surco Rack - 2" Budget Boost, Addco Front Swaybar

Project (s)Low - A build log.
UltimatE is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 11:57 PM   #8
RanTJWJ
Registered User
1998 TJ Wrangler 
 
Join Date: Dec 2009
Location: Denver, CO
Posts: 168
thanks everyone for the help. jf coming through yet again.
RanTJWJ is offline   Reply With Quote Quick reply to this message
Unread 01-17-2010, 12:21 AM   #9
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,682
Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Sig worthy!

Max
__________________
Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.